Conveyer



E. H. ALLFREE June 16, 1931.

CONVEYER .Filed April 16, 1930 5 Sheets-Sheet 1 glwuentoz E. H. ALLFREE 1,810,588

June 16, 1931.

' CONVEYER s Sheets-She et 2 Filed April 16. 1930 June 16, 1931.

gwuvmtoz Patented June 16, 1931 UNITED STA S "EDWIN H. AIiLZEREE; or r'nonron, onto c mmas Application filed April 16,

My present invention relates to conveyers of the reciprocating pan or chute type, such as shown and described in United States Letters Patent, No. 1,662,808, granted to myself and Albert R. Williams, on March 20, 1928 a for convenience sim l as ans, such as This inventionrelates particularly to cor 'ner pans or chutes (hereinafter referred to,

may be usedat a point where the train of pans is laid around a corner or' otherwise changes its direction. r

The objects ofv this-inventionyare as follows: a i I First, to construct a corner "pan in such manner that there will be no retardation of flow of the coal, ore, or other material being conveyed. I I Second, to construct a corner panin such manner that its operation, in the tIalIl,LWlll be free from binding effector-undue friction, and will require the use of no excess of power. Third, to construct a corner pan in such manner that it maybe quickly and easily connected. to, or disconnected-from, the straight pans which flank it, in the train; Fourth,- to construct a corner pan in such manner, that it may be quickly andleasily adapted for use in connection withgeithera right hand or left hand turn of the train. Fifth, other objects and advantagesof the invention will manifestfthemselves from the detailed description to :follow,3and will be pointed out inthe appended claims. 1

These objects are attained in the manner hereinafter set forth, reference being had to the accompanying three sheets of drawings, in which: I y; 2

Figure 1 is a top plan view of a corner pan constructed in accordance with this invention, together with parts of the twogflanking straight pans, and illustrates the manner in i which they are secured in operative connection; p

Figure 2 is a projected longitudinal vertical sectional View on the partly straight and partly arcuate line 22 of Figure 1;

Figure 3 is a transverse vertical sectional View on the line 3-3 of Figure 1; Figure 4 is a similar View on the line 4-4t of Figure 1;

projecting -froma bal 1930. Serial Hui-444,723.

Figure 5 is a similar view on the line 55 of Figure 1; and, 7V 8 Figure 6 is a diagrammatictop plan view of a series of pans-in a train, and illustrates the manner in which corner pans, constructed 1n accordance wlth this invention, are adapted for use in such a tram.

Referring, in the first instance, to Figure 1 of'the drawings, thereis shown a corner pan A having its receiving end in operative connection with the delivery end of a straight pan B,': whicl1 precedes it in the train, and

having its delivery end insimilar connection Wltll the receiving end of a similar straight panC, which follows it therein.

Thecorner pan A is .of substantially arouate form and embodies a bottom 10 and side walls 11; "At its receiving end this pan is connected, by means of a swivel joint as, to the deliveryfendof the straight pan B, and, at its delivery end, itis similarly connected, by

means of another swivel joint '1, to the receiving end Of the straightpan O. I

The swivel joint as comprises,'as best shown in Flgurei5, a male member 12 carried by a swivelplate 13 fixedly secured to the pan B,

and a femalemember 14 fixedly secured to a saddle 15, which is screwed, bolted, or

otherwise removably secured to the corner pan A. The male and female members are mamtamed 1n operatlve engagement with each otherby means of a nut or bolt connec tion. The bolt 16 is provided with a spherical head 17 and thenut 18 is secured in place by means of a locking pin 19. is allowed to permit free action of the swivel.

Sufficientplay The joint 3/ is of substantially identical construction, except that the; male member is carried by the saddle removably secured to the corner pan A and the female member is carried bythe swivel plate'of the'pan C.

Inasmuch as the I swivel carrying saddles are readily removable; fromlthepan A, they be quicklyand easily changed, end for end, on such pan, and the pan thus easily adapted for either a right hand or a left'hand turn.

1' The mounted upon and carriedby a frame cons'istingof-Ja pair of radial arms andsoeket mountessential.

ing 21 which is positioned at the center about which the arc of the pan A is cast. The outer ends of the arms 20 are fixedly secured to plate-s 22 mounted upon the bottom of the pan A and they are provided with a cross brace 23.

The pan A has a wheeled mounting consisting of a wheel 24 adapted to roll back and forth upon a track 25, and mounted upon an axle 26, one end of which is guided between a track 27 securedto the pan A, and the other end of which rotates between pins 28 upstanding from the brace bar 23. When the swivel carrying saddles are re-versed,end

for end, on the pan to change it from a left hand turnmsillustratertto a right hand'turn, the wheel 24 is removed and Sinflla'ilYmOUHt- "'edadj'a cent th'e other 'endof the pan, its aXle, then, engaging a similar track 2?, reversed and secured to bottom of pan, and the pins 28 onth'e bar-23. t

The manner in which the train of *pan's is horizontallyrecipro'cated, and the means employed for imparting reciprocating movement thereto is fully illustrated and described in the patent of lrllfree and Williams, he'rein'before mentioned, or any one of the several different kinds ofdrive mechanism used forthis type of conveyer. Thlsfeature forms no part of the present invention and is, consequently, not shown nor dwelt upon herein.

In'F-igure 6 there is illustrated a train "of pans in which'are included both right hand and left hand turn corner pans, 'these pans bein shown off th 9O turnand tu'rn.

VVhil'e the "corner pans illustrated "are shown as of arcuate form,.this is not always =Inthecase of certain turns in the 'train,'especially those of but slight degree, a corner 1pan having astraight center linemay be efliciently employed provided its mount ing; and connections are as shown and de- 'SCflbQd. In oth er words,'the*1mportant feature is that the 1 corner pan must move, when the conveyer =is 1n operation, in an arcuate --path-'about its fixed pivotal-mounting.

. Quite obvioiisly many other changes may bemade inthe form, shape andgeneral-structHIEiOf a 'co'rnerlpan, and,*also,:in its mount- .iug andmOnnection means, without any departure from the spirit of this invention, aprovided -such modifications fall within the scope-'of'the appended claims. Vvhatis claimed is:

1. -A-' cornerapan 5 for a horizontal reciprocable conveyer train, said :pan :being formed with an arcua'tecenter -l1ne.-

2. A corner pan for a horizontally recipreciprocable conveyer train, a female member of a swivel joint mounted at one end thereof, and a male member of a swivel joint mounted at the other end thereof, said members being adapted to engage with complementary members carried by adjacent :pans in the train.

4. The elements as set forth in claim 3, but with the said members of swivel joints removably mounted upon the said corner pan.

'5. An arcuate corner pan for a horizontally reoiprocable conveyer train, a pair of saddles mounted One at each end thereof, and swivel joint members carried by said saddles, a female member by one saddle and a male member by the other.

6. The elements ass-etforth in claim-5, but

with the said saddles removably mounted r 9. :A corner pan for a conveyor i'train'and alaterally spaced pivotal mounting therefor,

; whereby any m'ove-mentof the pan will'be in an 'arcuate path about the pivotal mounting.

10. A corner pan for 'a conveyor train, a mounting frame for said pan, saidframeextending laterally from :said pan, and a pivotal mounting for the "lateral extension of 'said frame, whereby- :any movement of the pan'will be in an arcuate path about the pivotal mounting.

1 1. A' cornerapan fora conveyor-train, said pan havingia recei-ving end and a discharge end, and .a mounting therefor, whereby any movementof the said ends will be inarcuate "paths about a common center.

12. A corner pan for a horizontally re ciprocable conveyer train, said pan "being formed with-van arcuate center line and having a receiving end anda discharge end, a pivotal mountin'g-therefor'at the center about which the arcis' cast, whereby anymovement :of the said ends willbeiin'arcuate paths about :a common icenter, and shiftable means cofsign'at'ure. :EDWIN- H.

'ro'cable conveyor train, said :pan being formed with an arcuate center-line, 'anda mountlng frame for sald pan, said frame having 'apivotal mounting i at the center aboutwhich thearc oftheipanis'cast.

3. 'ar'c'uate corner pan fora horizontally 

